Applied online and completed a coding challenge. The next steps involved multiple rounds of rapid-fire interview questions. After that, the interviewers compared notes and discussed next steps. I am not familiar with the subsequent stages, as I did not advance past that point.

Given a string as input, determine whether the word is "smashable". A word is considered "smashable" if there is a sequence in which a letter can be removed, and the string remains a valid word, until only one letter is left. For example, "sign" is smashable because "sign" → "sin" → "in" → "I" are all valid words.